| 摘要 |
PLC 10具备有：透过泛用网路而与其他的PLC连接之通讯部101；判定本身的PLC 10的第一网路设定资讯与从前述其他的PLC传来的第二网路设定资讯是否相同之设定内容判定部106；在前述第一网路设定资讯与前述第二网路设定资讯相同之情况，比较前述本身的PLC 10的第一系统构成资讯与前述其他的PLC的第二系统构成资讯，判定与前述其他的PLC构筑二重化系统时所必要的构成是否一致之系统构成判定部107；在前述构成一致之情况，决定前述本身的PLC 10是控制系统还是备用系统，若决定为是前述控制系统则维持前述第一网路设定资讯，若决定为是前述备用系统则变更前述第一网路设定资讯的内容之控制系统-备用系统设定部108。; a setting content determination part 106, determining whether a first network setting information of the PLC is identical to a second network setting information sent from the other PLC; a system-construction determination part, comparing a first system-construction information of the PLC 10 with a second system-construction information of the other PLC which the first network setting information is identical to the second network setting information, to determine whether an essential construction for constructing a dual system is identical to that of the other PLC; and a control-backup system setting part 108, determining whether the PLC 10 is a control system or a backup system when aforesaid constructions are identical; wherein the first network setting information is maintained when the PLC is determined as the control system, and the first network setting information is altered when the PLC is determined as the backup system. |
